Study on the Langevin piezoelectric ceramic ultrasonic transducer of longitudinal-flexural composite vibrational mode

被引：29

作者：

Lin, SY ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Appl Acoust Inst, Xian 710062, Shaanxi, Peoples R China

来源：

ULTRASONICS | 2006年 / 44卷 / 01期

基金：

中国国家自然科学基金;

关键词：

longitudinal vibration; flexural vibration; composite vibrational mode; resonance frequency; simultaneous resonance;

D O I：

10.1016/j.ultras.2005.09.002

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper, the Langevin longitudinal-flexural composite mode piezoelectric ultrasonic transducer is studied. This type of transducers consists of slender metal rods and longitudinally polarized piezoelectric ceramic rings. The resonance frequency equations for the longitudinal and flexural vibrations in the transducer are derived. By correcting the length of the metal slender rods, the simultaneous resonance of the longitudinal and flexural vibrations in the transducer is acquired. The experimental results show that the measured resonance frequencies of the transducers are in good agreement with the computed ones, and the measured resonance frequencies of the longitudinal and the flexural vibrations in the composite transducers are also in good agreement with each other. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：109 / 114

页数：6

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